Inventor

Hans-Werner Stankewitz

Inventor

Wetzlar, DE

Overview

1976–2003

Patent span

Physics

Primary field (CPC G)

Patents· 13 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Bprimary

G02BOptical elements, systems or apparatus100%

PatentTitleYear

6,538,809'Variable epi-illumination interference attachment'2003 5,872,651'Condenser system for microscopes'1999 5,708,526'Process and device for contrasting objects to be microscopically examined'1998 5,684,625'Illumination device for microscopes'1997 5,566,019'Bright-field transmitted-light lighting device for microscopes'1996 5,521,755'Epi-illumination system for microscopes'1996 4,881,802'Combined bright field-dark field incident light illumination apparatus'1989 4,798,948'Field stop for dark field illumination in autofocus optical device'1989 4,386,830'Incident light, bright-field Kohler illuminating device'1983 4,166,671'Apparatus for simultaneous adjustment of the position and aperture of a microscope field stop'1979 4,163,150'Process and apparatus for automatically realizing Kohler\'s principle of illumination'1979 4,127,318'Direct illumination apparatus for light and dark field illumination'1978 3,930,713'Incident light illumination instrument for selective light and dark field illumination'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1989Patents assigned to LEITZ ERNST GMBH (7)· patent assignee history

1976–1983Based in Steindorf, DE· patent location history

1989–2003Based in Wetzlar, DE· patent location history

1996–1999Patents assigned to LEICA MIKROSKOPIE & SYST (5)· patent assignee history

2003Patents assigned to LEICA MICROSYSTEMS (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LEITZ ERNST GMBH	7	1976–1989
LEICA MIKROSKOPIE & SYST	5	1996–1999
LEICA MICROSYSTEMS	1	2003

Locations

Location	Patents	Span
Wetzlar, DE	8	1989–2003
Steindorf, DE	5	1976–1983